nicer header styling

# BEFORE

![everydayhero_api__campaigns-5](https://f.cloud.github.com/assets/486512/1690062/1dacb492-5e38-11e3-90f6-618a9b7f66ac.jpg)

# AFTER

![everydayhero_api__campaigns-6](https://f.cloud.github.com/assets/486512/1690066/30406ae0-5e38-11e3-8a20-f56fdad7c783.jpg)